Wireless portable power source



FIG. 1 is a top, front and left perspective view of a wireless portable power source showing my new design;

FIG. 2 is a top, rear and left perspective view thereof;

FIG. 3 is a top, front, left perspective view thereof in use state;

FIG. 4 is a top, front and left perspective view thereof in use state;

Fig. 5 is a front, left and bottom perspective view of the wireless portable power source as shown in FIG. 1 ;

FIG. 6 is a front view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is a right side view thereof;

FIG. 10 is a top plan view thereof; and,

FIG. 11 is a bottom plan view thereof.

The broken lines in the figures illustrate portions of the wireless portable power source that form no part of the claimed design. 

CLAIM The ornamental design for a wireless portable power source, as shown and described. 